Undefined method `update_with_password'

[synth]

Given: I'm using devise-passwordless and I've logged in and I try to update my user profile (ie via devise's registrations controller), I get the following error:

undefined method `update_with_password'

I tried reading through the README and tickets to find a solution on this as this seems like a common case, but i couldn't find anything. What is the appropriate way to handle this? To override the registrations controller? Or to implement update_with_password in my User model and just don't.